Dynamic Input (AutoCAD)
On-cursor command tooltips that show prompts and accept relative or absolute coordinates as you type.
Definition
Dynamic Input (toggled by F12 or the status-bar button, controlled by DYNMODE system variable) shows the current command prompt at the cursor rather than only on the command line, and changes coordinate-entry behaviour: by default, typed coordinates are treated as relative (distance, then tab, then angle).
Why it matters
Dynamic Input speeds drafting for users who like to look at the cursor rather than the command line. It also changes how to enter precise coordinates — knowing the convention prevents 'why didn't my line go to 100,100?' confusion.
Common pitfalls
- Forgetting to prepend # for absolute coordinates when Dynamic Input is on.
- Toggling F12 by accident and not noticing input behaviour changed.
- Using polar relative entry (@) habits in Dynamic Input where it isn't needed.
This concept is a core structural element of the AutoCAD drafting and engineering environment developed by Autodesk. The original commercial CAD platform — still the lingua franca of DWG-based 2D documentation across AEC, mechanical, and infrastructure work.
Relevant AutoCAD FAQs
❓ Is AutoCAD available on macOS?
Yes — AutoCAD for Mac is a separate build with most of the Windows feature set but missing some advanced functionality (sheet sets, action recorder, dynamic block authoring, some specialised toolsets). DWGs interchange freely. For full feature parity, run AutoCAD for Windows in a Mac virtualisation environment.
❓ Is AutoCAD LT still sold separately?
No. In 2024 Autodesk consolidated AutoCAD LT into the standard AutoCAD subscription at a single price point. New buyers receive the full AutoCAD with specialized toolsets. Existing LT subscribers were migrated. If you see LT listed by a reseller it is either a transitional SKU or a regional exception.
❓ What is the latest DWG file version AutoCAD writes?
AutoCAD 2018+ writes the 'AutoCAD 2018' DWG format, which is current through AutoCAD 2024 and 2025. Newer releases have not (so far) introduced a new DWG version — meaning files travel freely between recent releases. Always SAVEAS to the recipient's release if you know they are older.
⚡ Concept Self-Test
🎓 Recommended Practice Lessons
Step-by-step practical exercises and certification-aligned paths chosen by our editors to master this concept:
🌳 Semantic Crossroads & Navigation Pathways
Trunk-Branch-Leaf ModelCore glossary, interactive graph, and domain-wide concept index.
Parent design environments and platforms implementing this method natively.